Steam-boiler



` E. H. VINCENT. STEAM BOILER.

APPLICATION FILED APR- 3, 1915.

. 1,35 1,500, Patented Aug. 31, 1920.

. 2 SHEETS-SHEET 2.

ATTORNEY-5 To all 'whom t may concern:

ERNEST H. VINCENT, OF OAKLAND, CALIFORNIA, `ISSIGNOR OF ONE-HALF T0 HERMAN CHRISTENSEN. OF SUNNYVALE, CALIFORNI.

STEAM-Bomen.

Specification of Letters Patent. Patented Aug. 31, 1920.

Application led April 3, 1919. Serial No. 287,106.

Be it known that I, Exam-:sr H. VINCENT, a citizen of the United States, residing at Oakland, in the county oi' Alameda and State'of California, have invented new and useful Improvements in Steam-Boilers, ot' which the following is a specification.

'This invention relates to a steam boiler, and particularly pertains to a type of 'boiler adapted to be used upon automobiles, motor truck tractors or marine work.

It is the principal object of the present invention to provide a steam boiler which is composed of a plurality of duplicate elenients easily assembled to form a boiler of a desired capacity and readily repaired or removed when desired; theelements ot said .boiler being decidedly simple in their construction and aii'ording a boiler structure from which a maximum heating efficiency may be obtained. and by which steam may be produced in an economical manner for the steam engine of an automobilef motor truck tractor or marine work.

The invention contemplates the use of a multiplicity ot' vertical heatgand 'ater tubes arranged in sets adapted tobeseparately removed from the structure and easily com,- bined therewith to form a complete circulating system and to supply steam reservoirs Jforming a part ot' the boiler lstructure.

. The invention is illustrated by way of example in the accompanying drawings in which-` Figure 1 is a view in frontl elevation and section, showing the complete boiler.

Fig, 2 is an enlarged fragmentary view in section and elevation illustrating the inter-communicating passages between the boiler sections. i..

Fig. 3 is a view in side elevation. showing the boiler with parts broken away to more clearly disclose the telescopic arrangement ot' the heat and water tubes and the manner in which they are assembled.

Fig. 4 is an enlarged fragmentary View, showing the assembled relation of the boiler units.

F ig. 5 is an enlarged view, illustrating the combined spacing and connecting thimble.

Referring to the drawings, 10 indicates a housing, here shown as rectangular in formation and providing a lower hea-t chamber 11 vdisposed beneath a boiler structure 12 and a super-heating chamber 13 above this boiler. A heat inlet opening 14 communicates with the chamber 11 and an outlet opening l5 leads from the upper chamber 13, thereby providing a complete circulation of heat through the structure. p

As shown in the drawings, the entire housing 10 is inclosedby an outer metal Wall 16, while the inner walls of thehousing are here shown as separated along lines 17 and 18 to permit the removal of the lower chamber 11 and the upper cliamber'13 and to thereby allow ready access to the bottom of the heat structure 12 and the top thereof. Angle plates 19 are utilized to secure these wall sections together by means of bolts 20.

The boiler structure comprises a plurality of combined water and heat circulating units 21. One of these units is clearly shown in Fig. 1 and will be seen 4to comprise a lower tube 22, preferably formed of drawn steel tubing and square in cross section. This tube extends outwardly through the housing and is fitted at each end witha plug ing outwardly between the tubes and through thesides of the housing. These bars are formed with suitable clearance openings 'for the screw plugs 24. It will be understood that the square tubes 22 are arranged in parallel relation to each other crosswise of the housing and in this particular instance crosswise otl a vehicle frame.

Through the lower vall of each tube 22 a plurality of small openings 29 are formed. These openings receive flue tubes 30 which extend upwardly and pass through steam tubes 31. The steam tubes 31 are welded with their lower ends through openings 32 in the upper wall of each of the tubes 22.

As shown 'in Fig. 1, the tubes 30 are con-v siderably longer than the tubesY 31 and ex-V tend upwardly through upper square tubes of the tubes 33. The steam tubes 31A extend These pipes are through openings 35 in the lower wall of vthe upper tubes 33 and are there welded.

'and at the same time communication will be established between the lower square tubes 22 and the upper square ytubes 33 of each boiler unit. By the expression boiler unit is implied the provision of a lower tube 22, an upper tube 23 and a plurality o-f heat and steam tubes, as particularly shown in Figfl.

Referring particularly to Fig. 4, it will be noted that openings 36 are formed through the opposite side wallsof each of the square tubes 22 and These openings are adapted to receive thimble members 37 which are cylindrical and tubular and have a circumscribing collar 38 midway their lengths. T he thickness of the collar represents the space between the Asquare tubes, while the cylindrical end portions are adapted to fit secureljT within the openings 36 and thereby establish communication between the /various square tubes at the top 'and bottom of the boiler. Due to this arrangement, allof the tubes 3l and the upper and lower square tubes will be in constant communication and a complete circulation of steam may thus be produced.

Tlievaiious boiler units are held together by tie-bolts 39 extending above and below the sets of square tubes22, as shown in Fig. 3. These bolts pass through bolting plates 40 resting against the opposite outer faces of the loutermost boiler sections and when the bolts are tightened will insure that all of the tubes 22 will be held firmly against the shoulders 38 of the thimbles 37 without leakage. TheA upper. ends of the boiler sections are held together by bolts 4l which extend through certain of the thimbles 37 andthus detachably secure the units together.

Certain of the tubes 33 are formed with openings for receiving outlet pipes 42. led to the opposite heads of steam receivers 43. In the present instance two such receivers are shown mounted upon saddles 44 and inclosed within the super-heating chamber 13. These receivers are'connected by means of outlet pipes 45 which in turn are secured to a cross connection, thus establishing communication with the main supply pipe 46 and a gage pipe 47. The supply pipe 46 may, of course, be led to a suitable super-heater or may be directly led to a steam engine, if desired.

. tially to VVIn the operation of the present, invention, the boiler is filled with water up substan- This filling operation may be produced through any suitable connection, although not shownV in the drawings.

the dotted line indicated in' Fig. l.

Heat is then.

admitted to the chamber ll 'through the opening 14 and will pass upwardly through the heat tubes 30 and aroundthe water tubes. A Aheat radiation will thus take place asvthis heat is directly conveyed through the tubes 32 to the body of water contained within. each of said tubes. Steam will thus be Agenerated and conveyed through the pipes 42 te the receivers 43. In the event that any one of the boiler sections is to be cleaned or drained, the screw plugs 24 may be instantly removed by the use of a socket wrench. IVhen a section of the boiler is to be removed or repaired the bolts 3S) and 4l are loosened and the clamping bolts 27 are unfastened.

Having thus described my invention, what I claim and desire to secure by Letters Patent is l. A steam boiler including a series of units eachV comprising a lower and an upper tube, water tubes and heat tubes therein connected to the lower and'upper tubes, a

housing, the ends'of the lower tubes projectthe tubes, and vertical bolts connected to the 4 angle plates and extending over the bars;

2. In a steam boiler, a series of units'each consisting of an upper and a lower tube, water tubes and heat tubes therein connected to the upper and lower tube of each unit, meansy to interconnect adjacent upper and Ilower tubes, a housing, bars extending over the ends of the lower tubes, angle, plates connected to the housing and engaging. the upper and lower edges of the bars, and bolts connected to the'angle plates and extending over and across the outer faces of the bars.

3. In a-'steam boiler, a series of units each consisting of an upper and a lower tube, water tubes and heat tubes ed to the upper and lower tube of each unit, means to interconnect adjacent upper and lower tubes, a housing, bars extending over the ends of. the lower tubes, connected to the housing and engaging the upper and lower edges of the bars, and-bolts connected to the angle plates and extending over and across the outer faces of the bars, the ends of the lower tubes having plugged outlets and the bar having openings registering with t-he outlets to allow of access to the. latter.

In testimony whereof I have' hereunto set my hand in the presence of two subscribing witnesses. l

runner H. vINcnNT.

angle plates therein connect- 

